:root{
  --paper:#fafaf8;
  --ink:#1a1a1a;
  --mute:#4a4a4a;
  --wash:#efeee9;
  --rule:#c9c8c2;
  --disp:'Lexend Mega','Public Sans','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --body:'Public Sans','PingFang SC','Hiragino Sans GB',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;
  line-height:1.72;
  overflow-x:clip;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(26,26,26,.032) 0 1px,transparent 1px 3px),
    radial-gradient(rgba(26,26,26,.055) .5px,transparent .7px);
  background-size:auto,4px 4px;
  mix-blend-mode:multiply;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:3px solid var(--ink);
  outline-offset:2px;
}
.slab{position:relative;z-index:1}

/* 顶栏 */
.bar{
  position:sticky;
  top:0;
  z-index:30;
  display:flex;
  align-items:center;
  gap:.8rem;
  padding:.55rem clamp(.9rem,3.4vw,2rem);
  background:var(--paper);
  border-bottom:2px solid var(--ink);
  box-shadow:0 3px 0 rgba(26,26,26,.08);
}
.mark{
  flex:0 0 auto;
  width:2.75rem;
  height:2.75rem;
  display:grid;
  place-items:center;
  background:var(--ink);
  color:var(--paper);
  text-decoration:none;
  border-radius:10px;
  font-family:var(--disp);
  font-weight:900;
  font-size:1.05rem;
  transform:rotate(-3.5deg);
  box-shadow:3px 3px 0 rgba(26,26,26,.18);
}
.mark span{line-height:1}
.barnav{
  flex:1 1 auto;
  min-width:0;
}
.barnav nav{min-width:0}
.barnav ul{
  display:flex;
  align-items:center;
  gap:.1rem;
  margin:0;
  padding:0;
  list-style:none;
  overflow-x:auto;
  scrollbar-width:thin;
}
.barnav li{flex:0 0 auto}
.barnav a{
  display:grid;
  place-items:center;
  min-height:44px;
  padding:.4rem .62rem;
  font-size:16px;
  line-height:1.3;
  text-decoration:none;
  color:var(--mute);
  border-bottom:2px solid transparent;
}
.barnav a:hover{
  color:var(--ink);
  border-bottom-color:var(--ink);
  background:var(--wash);
}
.find{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:.3rem;
  border:2px solid var(--ink);
  border-radius:10px;
  padding:.15rem .15rem .15rem .5rem;
  background:var(--paper);
}
.find-l{font-size:16px;color:var(--mute);white-space:nowrap}
.find-i{
  width:6.2rem;
  border:0;
  background:transparent;
  font-family:inherit;
  font-size:16px;
  padding:.4rem .1rem;
  min-height:36px;
  color:var(--ink);
}
.find-b{
  border:0;
  background:var(--ink);
  color:var(--paper);
  font-family:inherit;
  font-size:16px;
  padding:.45rem .6rem;
  min-height:38px;
  border-radius:8px;
  cursor:pointer;
}

/* 主区 */
.sheet{display:block}
.hero{
  position:relative;
  min-height:70vh;
  margin:1rem clamp(.6rem,3vw,1.6rem) 0;
  display:flex;
  align-items:flex-end;
  justify-content:flex-end;
  padding:clamp(1.6rem,5vw,3.6rem);
  overflow:hidden;
  background:var(--ink);
  color:var(--paper);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 2.6rem),58% 100%,0 calc(100% - 2.1rem));
  isolation:isolate;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 6px,transparent 6px 15px);
}
.hero::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:.95rem;
  z-index:3;
  background:var(--mute);
  opacity:.95;
}
.hero-plate{
  position:absolute;
  inset:0;
  z-index:1;
  margin:0;
}
.hero-plate::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(198deg,rgba(26,26,26,.12) 18%,rgba(26,26,26,.84) 100%);
}
.hero-photo{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:grayscale(1) contrast(1.16) brightness(.84);
}
.hero-tape{
  position:absolute;
  top:1.2rem;
  left:-2.4rem;
  width:8rem;
  height:1.6rem;
  background:rgba(250,250,248,.55);
  border-top:1px dashed rgba(26,26,26,.35);
  border-bottom:1px dashed rgba(26,26,26,.35);
  transform:rotate(-14deg);
  z-index:2;
}
.hero-word{
  position:relative;
  z-index:4;
  max-width:38ch;
  text-align:right;
}
.hero-h1{
  margin:0;
  font-family:var(--disp);
  font-weight:900;
  font-size:clamp(1.9rem,6.2vw,4.2rem);
  line-height:1.06;
  letter-spacing:-.03em;
  overflow-wrap:break-word;
  text-shadow:2px 2px 0 rgba(0,0,0,.35);
}
.hero-p{
  margin:1rem 0 0;
  font-size:16px;
  line-height:1.6;
  color:rgba(250,250,248,.88);
  border-top:2px solid rgba(250,250,248,.45);
  padding-top:.7rem;
}

/* 两列 */
.deck{
  display:grid;
  grid-template-columns:minmax(0,1fr) 17rem;
  gap:clamp(1.6rem,4vw,3.2rem);
  align-items:start;
  max-width:1240px;
  margin:0 auto;
  padding:clamp(1.8rem,4.5vw,3.6rem) clamp(.9rem,3vw,2rem) 4rem;
}
.flow{min-width:0}
.flow > article{
  padding:1.9rem 0 2.3rem;
  border-top:2px solid var(--ink);
  scroll-margin-top:7rem;
}
.flow > article:first-child{border-top:0;padding-top:.2rem}
.flow h2{
  font-family:var(--disp);
  font-weight:900;
  font-size:clamp(1.4rem,3.2vw,2rem);
  line-height:1.2;
  letter-spacing:-.02em;
  margin:0 0 .9rem;
}
.flow h2 > span{display:inline-block;position:relative}
.flow h2 > span:first-child{box-shadow:inset 0 -.17em 0 #dcdbd4}
.flow h2 > span > span:empty{
  display:inline-block;
  width:2.2em;
  height:.2em;
  vertical-align:middle;
  margin-left:.32em;
  background:var(--ink);
  transform:rotate(-1.6deg);
}
.flow h3{
  font-family:var(--disp);
  font-weight:800;
  font-size:1.12rem;
  line-height:1.35;
  letter-spacing:-.01em;
  margin:1.7rem 0 .6rem;
}
.flow h3 > span{display:inline-block;border-bottom:2px solid var(--ink)}
.flow h3 > span > span:empty{
  display:inline-block;
  width:1.6em;
  height:.16em;
  vertical-align:middle;
  margin-left:.3em;
  background:var(--mute);
  transform:rotate(1.8deg);
}
.flow p{margin:0 0 1rem}
.flow ul,.flow ol{margin:0 0 1.1rem;padding-left:1.3rem}
.flow li{margin:.32rem 0}
.flow figure{
  margin:1.4rem 0;
  padding:.45rem;
  background:var(--paper);
  border:2px solid var(--ink);
  transform:rotate(-.5deg);
  box-shadow:5px 6px 0 rgba(26,26,26,.12);
}
.flow figcaption{
  font-size:16px;
  color:var(--mute);
  padding-top:.45rem;
  border-top:1px dashed var(--rule);
  margin-top:.4rem;
}
.flow blockquote{
  margin:1.4rem 0;
  padding:.9rem 1.1rem;
  border-left:6px solid var(--ink);
  background:var(--wash);
  font-size:17px;
}
.flow blockquote p:last-child{margin-bottom:0}
.flow img{border:0}
.flow a{
  color:var(--ink);
  text-decoration-line:underline;
  text-decoration-thickness:2px;
  text-underline-offset:3px;
}
.flow a:hover{background:#dcdbd4}
.flow strong{font-weight:800}

/* 侧栏 */
.rail{
  position:sticky;
  top:5.6rem;
  background:var(--paper);
  border:2px solid var(--ink);
  border-radius:10px;
  padding:1rem .85rem 1.2rem;
  box-shadow:0 12px 26px rgba(26,26,26,.1);
  transform:rotate(.6deg);
}
.rail-h{
  display:flex;
  align-items:center;
  gap:.4rem;
  margin:0 0 .6rem;
  font-family:var(--disp);
  font-weight:900;
  font-size:1rem;
  letter-spacing:.1em;
}
.rail-d{
  flex:1 1 auto;
  height:.16em;
  background:var(--ink);
  transform:rotate(-1.2deg);
}
.rail-list{
  list-style:none;
  margin:0;
  padding:0;
}
.rail-list li{border-top:1px dashed var(--rule)}
.rail-list a{
  display:grid;
  align-items:center;
  min-height:40px;
  padding:.45rem .2rem;
  font-size:16px;
  line-height:1.4;
  color:var(--mute);
  text-decoration:none;
}
.rail-list a:hover{color:var(--ink);background:var(--wash)}
.rail-brand{
  margin:.9rem 0 0;
  font-family:var(--disp);
  font-weight:800;
  font-size:.82rem;
  letter-spacing:.14em;
  color:var(--mute);
  border-top:2px solid var(--ink);
  padding-top:.6rem;
}

/* 页脚 */
.foot{
  position:relative;
  z-index:1;
  border-top:2px solid var(--ink);
  background:var(--wash);
  padding:2.2rem clamp(.9rem,4vw,2.4rem) 1.4rem;
}
.foot-top{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1.2rem;
  max-width:1240px;
  margin:0 auto;
}
.fcol{margin:0}
.fcol dt{
  font-family:var(--disp);
  font-weight:900;
  font-size:16px;
  letter-spacing:.12em;
  margin-bottom:.5rem;
  border-bottom:2px solid var(--ink);
  padding-bottom:.3rem;
}
.fcol dd{margin:0}
.fcol a{
  display:block;
  min-height:40px;
  padding:.45rem 0;
  font-size:16px;
  line-height:1.4;
  color:var(--mute);
  text-decoration:none;
}
.fcol a:hover{color:var(--ink);text-decoration:underline;text-decoration-thickness:2px}
.fhost{
  font-size:16px;
  line-height:1.5;
  color:var(--mute);
  padding:.25rem 0;
  overflow-wrap:break-word;
}
.sub{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.55rem;
  max-width:1240px;
  margin:1.9rem auto 0;
  padding:1rem 1.1rem;
  background:var(--paper);
  border:2px solid var(--ink);
  border-radius:10px;
  box-shadow:0 10px 22px rgba(26,26,26,.1);
  transform:rotate(-.3deg);
}
.sub-h{
  display:flex;
  align-items:center;
  gap:.4rem;
  margin:0;
  font-family:var(--disp);
  font-weight:900;
  font-size:1rem;
  letter-spacing:.1em;
}
.sub-d{
  width:2rem;
  height:.16em;
  background:var(--ink);
  transform:rotate(1.4deg);
}
.sub-i{
  flex:1 1 12rem;
  min-width:0;
  min-height:44px;
  padding:.5rem .7rem;
  border:2px solid var(--ink);
  border-radius:8px;
  background:var(--paper);
  font-family:inherit;
  font-size:16px;
  color:var(--ink);
}
.sub-b{
  min-height:44px;
  padding:.5rem 1.1rem;
  border:2px solid var(--ink);
  border-radius:8px;
  background:var(--ink);
  color:var(--paper);
  font-family:inherit;
  font-size:16px;
  cursor:pointer;
}
.sub-b:hover{background:var(--mute);border-color:var(--mute)}
.copy{
  max-width:1240px;
  margin:1.3rem auto 0;
  font-size:16px;
  color:var(--mute);
  border-top:1px dashed var(--rule);
  padding-top:.8rem;
}
.top{
  position:fixed;
  right:.9rem;
  bottom:.9rem;
  z-index:40;
  min-height:44px;
  padding:.55rem 1rem;
  border:2px solid var(--ink);
  border-radius:10px;
  background:var(--paper);
  color:var(--ink);
  font-family:inherit;
  font-size:16px;
  cursor:pointer;
  box-shadow:4px 4px 0 rgba(26,26,26,.2);
  opacity:0;
  pointer-events:none;
  transform:translateY(.6rem) rotate(1deg);
}
.top.on{opacity:1;pointer-events:auto;transform:rotate(-1deg)}
.top:hover{background:var(--ink);color:var(--paper)}

/* 动效 */
.rv{opacity:0;transform:translateY(16px)}
.rv.is-in{
  opacity:1;
  transform:none;
  transition:opacity .22s steps(3,end),transform .22s steps(3,end);
}
.hero.rv{transform:none}

/* 断点 */
@media (max-width:900px){
  .deck{grid-template-columns:minmax(0,1fr);gap:2rem}
  .rail{position:static;transform:none}
  .rail-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 .8rem}
}
@media (max-width:700px){
  body{font-size:17px}
  .bar{flex-wrap:wrap;gap:.5rem}
  .barnav{order:4;flex:1 0 100%}
  .barnav ul{border-top:2px solid var(--ink);padding-top:.2rem}
  .find{margin-left:auto}
  .find-l{display:none}
  .find-i{width:5rem}
  .hero{min-height:62vh;padding:1.4rem;margin-top:.6rem}
  .hero-word{max-width:100%}
  .hero-p{font-size:16px}
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-top .fcol:last-child{grid-column:1 / -1}
  .sub{padding:.85rem}
  .sub-i{flex:1 1 9rem}
}
@media (max-width:420px){
  .rail-list{grid-template-columns:minmax(0,1fr)}
  .hero-odd{font-size:1.8rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .top{transform:none;transition:none}
}

button[aria-expanded]{min-width:44px;min-height:44px}